___ earth is one of ____ planets. A. The sun's B. The the sun C. The the sun's D. The the suns'
c是正确答案
另一个例子
It's a common sense that the earth is____.
A.one of the sun's planet
B.one of the sun's planets
C.one of the sun's planet's
D.one of the sun's planets
d是正确答案
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